Environmental remediation costs have become increasingly prevalent in the past few decades. Conduct research in the Accounting Standards Codification to address the following requirements. Also, please be sure to provide a citation to the appropriate codification section (using the full paragraph number, i.e. ASC XXX-XX-XX).

1. Briefly explain the following terms:
   1. Environmental remediation liability
   2. Superfund
   3. Potential responsible parties